Request Quote
(Ships tomorrow)
BZX79-C3V3,113 Equivalent & Substitute Parts
Part Overview
The BZX79-C3V3,113 is a 3.3 V Zener diode rated for 400 mW power dissipation in a through-hole DO-35 (DO-204AH) axial package. Manufactured by Nexperia USA Inc., this component is classified as Active and maintains full RoHS3 compliance. Zener diodes of this specification are used in voltage regulation, overvoltage protection, and reference voltage circuits across industrial, consumer, and automotive applications. Alternative part numbers may be required due to packaging availability, tolerance specifications, inventory constraints, or supplier lead time considerations.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Zener (Nominal) | 3.3 | V |
| Tolerance | ±5% | — |
| Power - Maximum | 400 | mW |
| Impedance (Maximum) | 95 | Ohms |
| Current - Reverse Leakage @ Vr | 5 | µA @ 1 V |
| Voltage - Forward (Maximum) @ If | 900 | mV @ 10 mA |
| Operating Temperature Range | -65 to 200 | °C |
| Mounting Type | Through Hole | — |
| Package / Case | DO-204AH, DO-35, Axial | — |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitution of the BZX79-C3V3,113 is determined by the following critical parameters: nominal Zener voltage (3.3 V), maximum power rating (400 mW), tolerance specification (±5%), impedance (95 Ohms maximum), reverse leakage current (5 µA @ 1 V), forward voltage (900 mV @ 10 mA), operating temperature range (-65°C to 200°C), and through-hole axial package configuration.
Parametric equivalents maintain identical or superior electrical characteristics across all specified parameters. These parts are direct functional replacements with no circuit redesign required.
Similar parts share the same nominal Zener voltage and package type but differ in one or more electrical specifications such as power rating, impedance, reverse leakage, or operating temperature range. Similar parts require circuit analysis to confirm suitability for the intended application.
Parameter Comparison
| Part Number | Manufacturer | Vz (V) | Tolerance | Power (mW) | Zzt (Ohms) | Ir @ Vr (µA @ 1V) | Vf (mV @ If) | Temp Range (°C) | Packaging | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| BZX79-C3V3,113 | Nexperia USA Inc. | 3.3 | ±5% | 400 | 95 | 5 @ 1 | 900 @ 10 | -65 to 200 | Cut Tape | Active |
| BZX79-B3V3,113 | NXP USA Inc. | 3.3 | ±2% | 400 | 95 | 5 @ 1 | 900 @ 10 | -65 to 200 | Bulk | Active |
| BZX79-B3V3,133 | NXP USA Inc. | 3.3 | ±2% | 400 | 95 | 5 @ 1 | 900 @ 10 | -65 to 200 | Bulk | Active |
| BZX79-B3V3,143 | Nexperia USA Inc. | 3.3 | ±2% | 400 | 95 | 5 @ 1 | 900 @ 10 | -65 to 200 | Cut Tape | Active |
| BZX79-C3V3,133 | Nexperia USA Inc. | 3.3 | ±5% | 400 | 95 | 5 @ 1 | 900 @ 10 | -65 to 200 | Cut Tape | Active |
| BZX79-C3V3,143 | NXP Semiconductors | 3.3 | ±5% | 400 | 95 | 5 @ 1 | 900 @ 10 | -65 to 200 | Bulk | Active |
| 1N4619-1 | Microchip Technology | 3.0 | ±5% | 500 | 1600 | 0.4 @ 1 | 1100 @ 200 | -65 to 175 | Bulk | Active |
| BZX79C3V3 | Taiwan Semiconductor Corporation | 3.3 | ±5% | 500 | 95 | 25 @ 1 | 1500 @ 100 | -65 to 175 | Tape & Reel | Active |
| BZX79C3V3-T50A | Fairchild Semiconductor | 3.3 | ±5% | 500 | 95 | 25 @ 1 | 1500 @ 100 | -65 to 200 | Bulk | Active |
Engineering Selection Recommendations
Parametric Equivalents (Direct Substitutes):
BZX79-B3V3,113, BZX79-B3V3,133, BZX79-B3V3,143, BZX79-C3V3,133, and BZX79-C3V3,143 are parametric equivalents of the BZX79-C3V3,113. All maintain the 3.3 V nominal Zener voltage, 400 mW power rating, 95 Ohm impedance, and -65°C to 200°C operating temperature range. The BZX79-B series variants offer tighter tolerance (±2%) compared to the ±5% tolerance of the main part and BZX79-C series. All parametric equivalents are Active status products with RoHS3 compliance. Selection among these equivalents is based on packaging preference (Cut Tape versus Bulk) and tolerance requirements for the application.
Similar Parts (Application-Dependent):
The 1N4619-1 (Microchip Technology) shares the through-hole axial package but differs in nominal Zener voltage (3.0 V versus 3.3 V), power rating (500 mW versus 400 mW), impedance (1600 Ohms versus 95 Ohms), and operating temperature maximum (175°C versus 200°C). This part is not suitable for applications requiring 3.3 V regulation.
The BZX79C3V3 (Taiwan Semiconductor Corporation) maintains 3.3 V nominal voltage and 95 Ohm impedance but provides higher power rating (500 mW), higher reverse leakage (25 µA @ 1 V), and reduced maximum operating temperature (175°C). This part is suitable for applications tolerating higher leakage current and lower temperature operation.
The BZX79C3V3-T50A (Fairchild Semiconductor) matches the BZX79C3V3 electrical specifications with the addition of 200°C maximum operating temperature capability. This part accommodates higher power dissipation and extended temperature operation.
Frequently Asked Questions (FAQ)
Q: Can BZX79-B3V3 series parts directly replace BZX79-C3V3,113?
A: Yes. The BZX79-B3V3,113, BZX79-B3V3,133, and BZX79-B3V3,143 are parametric equivalents. They maintain identical nominal Zener voltage (3.3 V), power rating (400 mW), impedance (95 Ohms), and operating temperature range (-65°C to 200°C). The BZX79-B series offers superior tolerance (±2% versus ±5%), making them suitable direct replacements with no circuit modification required.
Q: What is the difference between Cut Tape and Bulk packaging?
A: Cut Tape (CT) packaging supplies components on individual tape segments suitable for automated pick-and-place assembly. Bulk packaging supplies loose components in quantities suitable for manual assembly or reel winding. Electrical performance is identical; packaging selection depends on assembly process requirements and inventory management.
Q: Why is the 1N4619-1 listed as a similar part rather than an equivalent?
A: The 1N4619-1 differs in three critical parameters: nominal Zener voltage (3.0 V versus 3.3 V), impedance (1600 Ohms versus 95 Ohms), and maximum operating temperature (175°C versus 200°C). These differences prevent direct substitution in circuits designed for 3.3 V regulation. Application-specific circuit analysis is required to determine compatibility.
Q: Can higher power-rated parts (500 mW) replace the 400 mW BZX79-C3V3,113?
A: Higher power ratings provide additional thermal margin and do not compromise circuit function. The BZX79C3V3 and BZX79C3V3-T50A both provide 500 mW ratings with 3.3 V nominal voltage. However, the BZX79C3V3 operates to 175°C maximum, while the BZX79C3V3-T50A extends to 200°C. Selection depends on application temperature requirements and acceptable reverse leakage current levels.
Q: What compliance certifications apply to all parametric equivalents?
A: All parametric equivalents (BZX79-B3V3 and BZX79-C3V3 series) maintain RoHS3 compliance and REACH Unaffected status. The 1N4619-1 is RoHS non-compliant. The BZX79C3V3 and BZX79C3V3-T50A maintain RoHS3 compliance. Compliance verification is required for regulated applications.
Q: How does tolerance affect circuit performance?
A: The BZX79-B series (±2% tolerance) provides tighter Zener voltage control compared to the BZX79-C series (±5% tolerance). Applications requiring precise voltage regulation benefit from the ±2% tolerance. Applications with wider voltage acceptance windows function identically with either tolerance specification.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts